remove support for non-ANSI compilation

*** 18,27 ****
--- 18,29 ----
   *
   * CDDL HEADER END
   */
  
  /*
+  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
+  *
   * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  /*
*** 65,76 ****
  
  typedef struct {
          void *__file_attrp;     /* implementation-private */
  } posix_spawn_file_actions_t;
  
- #if defined(__STDC__)
- 
  extern int posix_spawn(
          pid_t *_RESTRICT_KYWD pid,
          const char *_RESTRICT_KYWD path,
          const posix_spawn_file_actions_t *file_actions,
          const posix_spawnattr_t *_RESTRICT_KYWD attrp,
--- 67,76 ----
*** 186,227 ****
  
  extern int posix_spawnattr_getsigmask(
          const posix_spawnattr_t *_RESTRICT_KYWD attr,
          sigset_t *_RESTRICT_KYWD sigmask);
  
- #else   /* __STDC__ */
- 
- extern int posix_spawn();
- extern int posix_spawnp();
- extern int posix_spawn_file_actions_init();
- extern int posix_spawn_file_actions_destroy();
- extern int posix_spawn_file_actions_addopen();
- extern int posix_spawn_file_actions_addclose();
- extern int posix_spawn_file_actions_adddup2();
- extern int posix_spawnattr_init();
- extern int posix_spawnattr_destroy();
- extern int posix_spawnattr_setflags();
- extern int posix_spawnattr_getflags();
- extern int posix_spawnattr_setpgroup();
- extern int posix_spawnattr_getpgroup();
- extern int posix_spawnattr_setschedparam();
- extern int posix_spawnattr_getschedparam();
- extern int posix_spawnattr_setschedpolicy();
- extern int posix_spawnattr_getschedpolicy();
- extern int posix_spawnattr_setsigdefault();
- extern int posix_spawnattr_getsigdefault();
- #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
- extern int posix_spawn_pipe_np();
- extern int posix_spawn_file_actions_addclosefrom_np();
- extern int posix_spawnattr_setsigignore_np();
- extern int posix_spawnattr_getsigignore_np();
- #endif  /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
- extern int posix_spawnattr_setsigmask();
- extern int posix_spawnattr_getsigmask();
- 
- #endif  /* __STDC__ */
- 
  #ifdef  __cplusplus
  }
  #endif
  
  #endif  /* _SPAWN_H */
--- 186,195 ----